Keystones — Bedrock
Five GCSE retrieval questions · 26 June 2010 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 41 + 20
Answer: 41 + 20 = 61 -
2. Algebra Substitution
If x = 6, find the value of 5x + 9
Answer: 39 -
3. Geometry Converting lengths
Convert 6m to cm
Answer: 600cm -
4. Ratio Simplifying ratios
Simplify the ratio 15:12
Answer: 5:4 -
5. Statistics Mean
Find the mean of: 9, 8, 8, 11
Answer: 9